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2. The estuaries of Natal;Begg,1978
3. Status and review of waterbirds breeding at Lake St Lucia;Berruti;Lammergeyer,1980
4. A method for selecting conservation reserves;Bolton;Aust. Natn. Parks & Wild. Serv. Occ. Pap.,1983
5. South African Red Data Book — Birds;Brooke;South African National Scientific Programmes Report,1984